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Patent Searching and Data


Title:
PROJECTION DEVICE, PROJECTION SYSTEM, AND STRUCTURE WITH PROJECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/013335
Kind Code:
A1
Abstract:
A projection device (10) projects light onto a structure (ST) or into the surrounding environment (NT) to illuminate a projection area (LP). The projection device has a coherent light source (20) and a diffractive optical element (40) for diffracting light emitted from the coherent light source.

Inventors:
NAKATSUGAWA KAORI (JP)
KURASHIGE MAKIO (JP)
NISHIO SHUMPEI (JP)
NAKAI TOSHIYUKI (JP)
HATORI SHIGEKI (JP)
HOJO MIKIKO (JP)
ISHIDA KAZUTOSHI (JP)
Application Number:
PCT/JP2019/027804
Publication Date:
January 16, 2020
Filing Date:
July 12, 2019
Export Citation:
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Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
F21S2/00; F21V9/00; G02B5/18; H01S5/0239; H01S5/0683; F21Y115/30
Domestic Patent References:
WO2018092834A12018-05-24
WO2016072505A12016-05-12
WO2017057564A12017-04-06
WO2017217420A12017-12-21
Foreign References:
JP2016075857A2016-05-12
JP2008145669A2008-06-26
JP2016110808A2016-06-20
JP3141819U2008-05-22
JP2012243393A2012-12-10
JP2014235222A2014-12-15
JPH06162801A1994-06-10
JP2015163917A2015-09-10
JP2016146267A2016-08-12
Attorney, Agent or Firm:
NAGAI Hiroshi et al. (JP)
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